Heeded for this question. The half-life of the radioactive isotope thallium-210 is 1.30 minutes. How long will it take for the mass of a sample of thallium-210'to decay from 51.3 micrograms to 12.8 micrograms? minutes

Q: The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The…

A: Answer : Since radioactivity follows first order kinetics . Given : Half life = 14.3 days . Initial…

Q: Substance D initially weights 56 grams. After 6 minutes, it was observed that its mass decreased by…

A:

Q: The isotope 226Ra has a half-life for the radioactive decay of 1600 years. How long will it take the…

A:

Q: Iodine-131 used to treat hyperthyroidism, has a half-life of 8.04 days. For a sample containing 10.0…

A: Half life time = 8.04 days  Initial mass = 10.0 μg  Time = 32.2 days Mass remain after 32.2 days = ?…

Q: The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The…

A:

Q: An unknown radioisotope exhibits 8540 decays per second.After 350.0 min, the number of decays…

A: Nuclear reactions are a type of chemical process which lead to the formation of some new nuclei with…

Q: Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-life…

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Q: The half-life of the radioactive isotope radon-222 is 3.82 days. How long will it take for the mass…

A: Recall the following expression to calculate required time of radon-222 to decay from 93.2…

Q: The half-life for gallium-67, a radioisotope, is 78.25 hours. How much of a 56.7 sample of…

A: Given datas ;  t1/2 = 78.25 hrs. [A]0 = 56.7 mg  [A]t = ?  t = 359 hrs.  t/t1/2   = 359 hrs / 78.25…

Q: The half life of a certain substance is 5.6 days. How long will it take for 100 g of the substance…

A: Radioactive decay follows the first-order kinetics. The decay constant (λ) and half-life of a…

Q: (d) How long does it take for 90% of a given quantity of the radioactive element cobalt-60 to decay,…

A:

Q: If 10% of a radioactive substance decomposes in 200 years, what percentage will be present at the…

A: Given is the amount decomposed after 200 years and we have to find after 1000 and 2000 years.

Q: Phosphorus-32 is used in biochemical studies to follow the pathway taken by metabolites. Its…

A: (a) All the radioactive reactions are first order, thus, value of rate constant can be calculated…

Q: ‏C-60 decays with a half - life of 5.27 years to produce Ni - 60 . What the deacy constant for…

A: Half life of C-60 = 5.27 years  Decay Constant , K = ?

Q: Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-life…

A: The initial amount of Chromium-51 (No) = 30.8 mg The half-life period of Chromium-51 (t1/2) = 27.7…

Q: One of the radioactive isotopes used in medical treatment or analysis is palladium-103. The…

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Q: Radioisotope X has a half-life of 4.0 h. Based on the figure below, if the original sample of the…

A: Half life (t1/2) :-  The time required for the concentration of reactant to reduce to half of its…

Q: The half-life of the radioactive isotope polonium-214 is 1.64x104 seconds. How long will it take for…

A:

Q: Another form of radiometric dating is potassium-argon dating, which tracks the ratio of Ar-40 to…

A: Any reaction following "first-order reaction", that reactions rate always relies over single…

Q: The half life of a radioactive iodine is 8 days. How long will it take for 0.25 g of radioactive…

A:

Q: Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is…

A: Given : Initial amount of strontium isotope = 1.00 g Final amount of strontium isotope = 0.200 g And…

Q: A sample of a newly discovered element, West Virginium, has a half-life of 288 years.  How long…

A:

Q: Iodine-131 is used in the treatment of thyroid disease. What is the half-life of iodine-131 if a…

A: Weight of sample initially = 160mg Weight of sample finally = 5mg Time elapsed = 40 days We have to…

Q: If the first-order half-life of tritium (³H) is 12.26 years, what amount of time is necessary for it…

A: Given data : half-life of tritium (³H) is 12.26 years Let the initial amount be x. Also given that,…

Q: Element X has a half-life of 6 hours. How much of X remains from a 64kg sample after one day?

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Q: The half-life of the radioactive isotope magnesium-20 is 0.600 seconds. How long will it take for…

A: Half-life is the time required for a quantity to be reduced to half of its original value. The…

Q: An isotope of thorium, 227Th, has a half-life of 18.4 days. How long will it take for 83% of the…

A: The correct answer of the question is given below

Q: For the radioactive isotope, phosphorus-32, how much would be used if there is only 3.50 mg left in…

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Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 × 10³ Suppose nuclear…

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Q: Cesium-137 is part of the nuclear waste produced by uranium-235 fission. The half-life of…

A: Half-life of Cs-137 and initial mass, from which amount of Cs-137 left after 90.6 years.

Q: what fraction of k-38 remains after 2.00 hours? the half-life of k-38 is 7.71 minutes

A:

Q: 9. Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is…

A: The rate constant is calculated as follows,

Q: Iron‑59 is used to study iron metabolism in the spleen. Its half‑life is 44 days.44 days. How many…

A: The time will take a 28.0 g28.0 g sample of iron‑59 to decay to 1.75 g has to be calculated

Q: Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in…

A: Given: Mass of Na332PO4 = 175 mg = 0.175 g                                       (Since 1 g = 1000…

Q: Iron-59 is used to study iron metabolism in the spleen. Its half-life is 44 days. How many days…

A:

Q: Radium decomposes at a rate proportional to the present amount. The half life of Radium is 1600…

A:

Q: Carbon-11 is a radioactive isotope of carbon. Its half-life is 20 minutes. What fraction of the…

A: Half life t ½ = 20 minutesDecay constant, k = 0.693/ t ½ = 0.693/20 min = 0.03465 min-1

Q: After 42 years, what mass remains of a 100.0 g sample of a radioactive isotope with a half-life of…

A:

Q: Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in…

A: The loss of elementary particles from an unstable nucleus results in the transformation of the…

Q: The half-life of radioactive cobalt is 5.27 years. Suppose that a nuclear accident has left the…

A: Given the half-life of cobalt=5.27 years.

Q: Phosphorus-32 is used in biochemical studies to follow the pathway taken by metabolites. Its…

A: a) The rate constant can be calculated from half-life time, K=0.6932t1/2 K=0.693214.3 days=0.0485…

Q: Use the References to access important values if needed for this question. The half-life of the…

A: Introduction: Radioactive isotopes can be defined as atoms that contains an unstable combination of…

Q: Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is…

A:

Q: If the first-order half-life of tritium (°H) is 12.26 years, what amount of time is necessary for it…

A: The half-life is the time taken for the reaction to complete half of its original concentration

Q: How much time is required for 84% of the isotope to decay?

A: Given: Iodine-131, which is used to treat thyroid cancer, has a half-life of 8.04 days. The…

Q: A sample of a newly discovered element, West Virginium, has been discovered.  A 167 mg sample has…

A: We will use first order kinetics to solve this question.

Q: The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The…

A: Given : Half life of phosphorus-32 = 14.3 days And the final activity of sample of phosphorus-32 =…

Q: The half-life of bromine-74 is 25 minutes.  How much of a 40 cpm sample is still active after 75…

A: Since bromine-74 is a radioactive element  hence it will have decay reaction  And since the decay…

Q: The half-life o carbon-11 is 20.3 min. How long will it take for 69% of a sample to decay? How long…

A: Given data,Half life(t1/2)=20.3min Radioactive decay is of the first order. The relationship between…

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.